JP4358315B2 - Bidirectional branch controller - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a two-way branch controller, the purpose of which is excellent in flowability, does not cause fluid accumulation in the flow path, and can be installed in a small space and has excellent operability. It is to provide a controller.
[0002]
[Prior art]
Conventionally, in order to mix fluid flowing in from two directions or distribute fluid flowing in from one direction in two directions, a T-shaped tube (T) or a vent tube (B) is used as shown in FIG. A piping structure connected in a letter shape is often adopted.
Further, when the horizontal pipe is branched in the vertical direction, a branch pipe structure using a T-shaped pipe (T) is used as shown in FIG.
However, in the conventional piping structure as described above, when the control valve is closed, in the piping structure shown in FIG. 11, the inside of the T-shaped pipe (T) and the vent pipe (B), and in the piping structure shown in FIG. A large amount of fluid accumulated in the pipe from the branch path of the T-shaped pipe (T) to the inlet flow path of the control valve (A), which was not preferable for reasons of hygiene.
Moreover, when using the conventional piping structure as described above, a plurality of pipe lines such as a T-shaped pipe (T) and a vent pipe (B) must be connected using packing (P) and clamps (C). The piping work was troublesome.
In addition, a large space is required for installation of the piping, and there are cases where it cannot be used in places where the piping is crowded.
Furthermore, since the two control valves (V) for controlling the flow rate to the branch path are in a separated position, the operability is poor when a manual valve is used.
[0003]
[Problems to be solved by the invention]
The present invention has been made in view of the above circumstances, and has excellent flowability, does not cause accumulation of fluid inside the flow path, and can be installed in a small space and has excellent operability. The issue to be solved is to provide a branch controller.
[0004]
[Means for Solving the Problems]
In the present invention, as means for solving the above problems, a valve box having a substantially triangular prism shape and having a first opening on the upper surface and a second opening on the lower surface and a third opening on the side surface, The first and second valve bodies are respectively arranged on two side surfaces of the three side surfaces of the valve box, and the first and second valve bodies are connection passages provided inside the valve box. And a passage from the first opening is branched in two directions in the valve box, and one passage is connected to the second opening via the first valve body. The two-way branching controller is characterized in that the other passage can be communicated with the third opening through the connection valve and the second valve body.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment of a two-way branch controller according to the present invention will be described with reference to the drawings.
FIG. 1 is a front view showing a reference example of a bi-directional branch controller according to the present invention.
The two-way branch controller according to the reference example mixes fluid flowing in from two directions or fluid flowing in from one direction by arranging two valve bodies (2) in one valve box (1). Is distributed in two directions.
[0006]
2 is a front view of the valve box (1), FIG. 3 is a cross-sectional view taken along the line AA in FIG. 2, and FIG. 4 is a cross-sectional view taken along the line BB in FIG.
The valve box (1) has a substantially triangular prism shape, and has a first opening (3) on an upper surface (left side surface in FIG. 2) and a second opening (4) and a third opening ( 5).
The passage from the first opening (3) is branched in two directions at intervals of 120 ° inside the valve box (1), and each branch path end opens on two side surfaces of the valve box (1).
Valve bodies (2) each having a diaphragm are attached to these two openings as shown in FIG. 1, and the first opening (3) is opened by opening and closing the diaphragm by operating these valve bodies (2). The second opening (4) and the third opening (5) can communicate with each other.
[0007]
By connecting the pipe as shown in FIG. 5 to the two-way branch controller having the above configuration, a substantially Y-shaped two-way branch pipe is formed.
Thus, by using the two-way branch controller according to the reference example , the piping structure is very compact compared to the conventional piping structure shown in FIG. 11, and the branch path length to the valve body (2) is long. Since it is very short, the amount of fluid accumulated in the pipe can be made extremely small.
[0008]
FIG. 6 is a front view showing an embodiment of the bi-directional branch controller according to the present invention, and FIG. 7 is a bottom view of FIG.
The bi-directional branch controller of the embodiment is mainly used when the horizontal pipe is branched in the vertical direction, and two valve bodies (21) are provided in one valve box (1) as in the reference example . (22) is arranged.
[0009]
8 is a front view of the valve box (1), FIG. 9 is a cross-sectional view taken along the line AA in FIG. 8, and FIG. 10 is a cross-sectional view taken along the line BB in FIG.
As shown in the figure, the valve box (1) has a substantially triangular prism shape. The valve box (1) has a first opening (7) on the upper surface (the left side surface in FIG. 8) and a second opening (8) on the lower surface. ) On the side surfaces of the third opening (9).
The two valve bodies (21) and (22) are respectively attached to two side surfaces of the valve box (1), and can communicate with each other through a connection passage (6) provided in the valve box (1).
The passage from the first opening (7) is branched in two directions in the valve box (1), and one passage can communicate with the second opening (8) via the first valve body (21). The other passage can communicate with the third opening (9) through the connection passage (6) and the second valve body (23).
[0010]
According to the two-way branch controller having the above configuration, the horizontal pipe can be branched in the vertical direction with a very compact pipe structure as compared with the conventional pipe structure shown in FIG. Therefore, the amount of fluid accumulated in the pipe can be extremely small.
[0011]
In the illustrated example, the operation mechanism for expanding and contracting the diaphragm is a pneumatic mechanism using a compressor. However, in the present invention, the form of the operation mechanism is not limited at all, and any known operation mechanism can be used preferably. It is good also as a manual operation mechanism of a type.
[0012]
【The invention's effect】
As described above, the present invention is a valve box having a substantially triangular prism shape and having a first opening on the upper surface and a second opening on the lower surface and a third opening on the side surface, and the valve box. The first and second valve bodies are respectively disposed on two of the three side surfaces, and the first and second valve bodies are communicated by a connection passage provided inside the valve box. The passage from the first opening is branched in two directions in the valve box, and one of the passages can communicate with the second opening via the first valve body. And the other passage is connected to the third opening through the second valve body through the connection passage, so that the conventional piping structure It is possible to branch a horizontal pipe in the vertical direction with a very compact piping structure compared to Branch path length can be made very small amount of fluid accumulated in very short order the pipe.
[Brief description of the drawings]
FIG. 1 is a front view showing a reference example of a bi-directional branch controller according to the present invention.
FIG. 2 is a front view of a valve box of a bi-directional branch controller according to a reference example.
FIG. 3 is a cross-sectional view taken along the line AA of FIG.
4 is a cross-sectional view taken along the line BB in FIG.
FIG. 5 is a diagram in which piping is connected to a bi-directional branch controller according to a reference example.
FIG. 6 is a front view showing an embodiment of a two-way branch controller according to the present invention.
FIG. 7 is a bottom view showing an embodiment of a bi-directional branch controller according to the present invention.
FIG. 8 is a front view of the valve box of the bi-directional branch controller according to the embodiment.
9 is a cross-sectional view taken along the line AA in FIG.
10 is a cross-sectional view taken along the line BB in FIG.
FIG. 11 is a diagram showing an example of a conventional piping structure.
FIG. 12 is a diagram showing an example of a conventional piping structure.
[Explanation of symbols]
1 Valve box
2 Valve body
21 First valve body
22 Second valve body
3 First opening
4 Second opening
5 Third opening
6 Connection passage
7 First opening
8 Second opening
9 Third opening

Claims (1)

A valve box having a substantially triangular prism shape and having a first opening on the upper surface, a second opening on the lower surface and a third opening on the side, and two side surfaces of the three side surfaces of the valve box, respectively. A two-way branch controller comprising a first valve body and a second valve body, wherein the first and second valve bodies communicate with each other through a connection passage provided in the valve box. The passage from the first opening is bifurcated in two directions in the valve box, one passage can be communicated with the second opening via the first valve body, and the other passage can be a connection passage. The two-way branch controller is configured to be able to communicate with the third opening through the second valve body.

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